Hi All,
I've been searching for a bug tracking tool that would be free/cheap and which is not Bugzila.. :-)

The tool should be unlimited of users & issues, web-based interface and not a hosted one (we'd like to install the server here).

I came up with the 3 tools above.

Does any of you have experience with these tools and can tell me what are their advantages/problems?

Do you know of any other tool that falls into these requirements that I should look at?